My kindergartner has to make a poster with 100 things on it to celebrate the 100th day of school.

The teacher sent home pictures with dried beans (or something) glued into the shape of "100", something else (looks like some sort of M&M candy) glued into the kid's name, and a big poster board with 100 animal related stickers.

I need some cool ideas for the 100things poster. Those all seem pretty dull to me.